WO2020073490A1 - Haut-parleur - Google Patents

Haut-parleur Download PDF

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Publication number
WO2020073490A1
WO2020073490A1 PCT/CN2018/122702 CN2018122702W WO2020073490A1 WO 2020073490 A1 WO2020073490 A1 WO 2020073490A1 CN 2018122702 W CN2018122702 W CN 2018122702W WO 2020073490 A1 WO2020073490 A1 WO 2020073490A1
Authority
WO
WIPO (PCT)
Prior art keywords
voice coil
cantilever
lead
fixed
support
Prior art date
Application number
PCT/CN2018/122702
Other languages
English (en)
Chinese (zh)
Inventor
王建建
郭翔
刘迎新
张成飞
Original Assignee
歌尔股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 歌尔股份有限公司 filed Critical 歌尔股份有限公司
Publication of WO2020073490A1 publication Critical patent/WO2020073490A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/06—Loudspeakers

Definitions

  • the utility model relates to the technical field of sound-electricity conversion. More specifically, it relates to a speaker.
  • the speaker is the most basic sound-generating component.
  • Existing speakers usually include a housing and a vibration component and a magnetic circuit component provided in the housing.
  • the vibrating component includes a diaphragm and a voice coil fixed together. After the voice coil inputs current, it vibrates under the ampere force of the magnetic field formed by the magnetic circuit component to drive the vibrating diaphragm to sound.
  • the voice coil is electrically connected to the external power supply through the voice coil lead.
  • the current voice coil lead is usually suspended in the speaker to the pad electrically connected to the external power supply and soldered to the pad, but this solution is likely to cause vibration when the speaker is powered on The system generates polarization, and it is also prone to disconnection after reliability experiments.
  • the FPCB board can be installed in the vibration assembly, and the voice coil leads are directly soldered to the FPCB board, and electrically connected to the external power supply through the FPCB board, but this solution requires the installation of the FPCB board, which will greatly increase the cost.
  • An object of the present invention is to provide a loudspeaker that fixes at least part of the voice coil lead on an insulating support, the support provides a straight path for the voice coil lead and fixes at least part of the lead, to avoid polarization of the vibration component and the voice coil The problem that the lead wire is easily broken.
  • the utility model discloses a loudspeaker, which includes a housing, a vibration component and a magnetic circuit component connected and fixed to the housing, the vibration component includes a diaphragm, a support and a voice coil fixed to each other, the support includes an inner side A fixing portion, an outer fixing portion, and a cantilever portion connecting the inner fixing portion and the outer fixing portion, the support member is a structure formed of an insulating material; the voice coil includes a lead wire, and at least part of the lead wire is fixed to the cantilever portion To make the lead wire lead out from the cantilever part and connect to the external circuit through the electrical connection structure.
  • the voice coil is fixed on an inner fixing portion of the support facing the side of the housing, and the outer fixing portion of the support is fixed to the housing; wherein,
  • the voice coil includes two voice coil leads, and the voice coil lead includes a lead wire outlet end leading from the voice coil, a lead wire free end, and a lead wire connecting portion connecting the lead wire outlet end and the lead wire free end;
  • the electrical connection structure includes two pads injection-molded on the housing for conducting with the voice coil lead, wherein,
  • the free ends of the two voice coil leads are respectively soldered and fixed on the two pads.
  • the support is rectangular, and the cantilever portion includes four cantilevers located on four sides of the rectangle; wherein,
  • each cantilever is connected to the four corners of the inner fixing portion in one-to-one correspondence, and the other end of each cantilever is connected to the outer fixing portion on the corresponding side.
  • the two voice coil leads are completely attached and fixed to the cantilever portions on two opposite sides of the rectangle, and go from the cantilever portion to the pad.
  • the two voice coil lead portions are attached and fixed to the cantilever portions on the two opposite sides of the rectangle, and go to the pad.
  • an arc-shaped portion is formed at the outlet end of the voice coil lead.
  • the lead connection part is completely fit and fixed on the two opposite sides of the rectangular cantilever part, and at least part of the arc part is suspended.
  • the voice coil lead is fixed on the cantilever part by applying glue.
  • the support member is a centering support piece, which is a single-layer structure or a multi-layer composite structure formed by a polymer.
  • the high molecular polymer is any one or more of polyimide, polyetherimide, polyetheretherketone or polyphenylene sulfide.
  • the voice coil lead is fixed on an insulating support, the voice coil lead is routed from the support to the electrical connection structure, and electrically connected to the external circuit through the electrical connection structure.
  • the insulated support of the utility model provides positioning and support for the voice coil lead, so that the voice coil lead can transmit acoustic current to the voice coil, and during the vibration of the voice coil, the voice coil lead vibrates with the support to prevent The pulling of the voice coil lead causes the polarization of the vibration system, and also prevents the voice coil lead from interrupting the line during repeated vibrations, improving the reliability of the speaker.
  • FIG. 1 shows an exploded schematic view of a specific embodiment of the speaker of the present invention.
  • FIG. 2 shows a top view of the voice coil lead arrangement in a specific embodiment of the speaker of the present invention.
  • FIG. 3 shows a bottom view of the arrangement of voice coil leads in a specific embodiment of the speaker of the present invention.
  • FIG. 4 shows a schematic diagram of the arrangement of voice coil leads in another specific embodiment of the speaker of the present invention.
  • a speaker As shown in FIG. 1 to FIG. 3 together, according to one aspect of the present invention, a speaker is disclosed.
  • the speaker includes a housing 1 and a vibration component and a magnetic circuit component provided in the housing 1.
  • the vibration component includes The diaphragm 2, the support 5, and the voice coil 3 are fixed to each other.
  • the support 5 includes an inner fixing portion 51, an outer fixing portion 52 and a cantilever portion 53 connecting the inner fixing portion 51 and the outer fixing portion 52.
  • the supporting member 5 is a structure formed of an insulating material.
  • the voice coil 3 includes a lead wire 4. At least a part of the lead wire 4 is fixed on the cantilever portion 53 so that the lead wire 4 is separated from the cantilever portion 53. Lead out and conduct with external circuit through electrical connection structure.
  • the voice coil lead 4 is fixed on the support 5, and the voice coil lead 4 runs in line from the support 5 to be electrically connected to an external power source.
  • the voice coil lead 4 is fixed on the supporting member 5, and the voice coil 3 and the diaphragm 2 vibrate under the support of the supporting member 5 to prevent the pulling of the voice coil lead 4 to cause polarization of the vibrating component and also prevent the voice coil lead 4 from being in the vibrating component
  • the repeated vibration process interrupts the line and improves the reliability of the speaker.
  • the support 5 is formed of an insulating material, which can save costs.
  • the support 5 may be fixed below the diaphragm 2, and the voice coil 3 is further fixed on the support 5.
  • the inner fixing portion 51 of the support 5 may be fixed with the voice coil 3
  • the voice coil 3 may be fixed on the inner fixing portion 51 of the support 5 on the side facing the housing 1, and the outer fixing portion 52 It can be fixed with the housing 1 and the lateral movement of the diaphragm 2 can be reduced by the positioning effect of the housing 1.
  • the voice coil 3 drives the diaphragm 2 to vibrate
  • the inner fixing portion 51 of the support 5 vibrates with the diaphragm 2 and the voice coil 3
  • the outer fixing portion 52 is fixed to the housing 1
  • the cantilever portion 53 is connected to the inner fixing portion 51 and the outer fixing portion 52 maintain the connection between the inner fixing portion 51 and the outer fixing portion 52 during the vibration of the support 5 with the voice coil 3.
  • the voice coil 3 includes two voice coil leads 4, and the two voice coil leads 4 may be respectively fixed on the cantilever portion 53, and pass the cantilever portion 53 in line.
  • Each voice coil lead 4 may include a lead outlet end leading from the voice coil 3, a free end of the lead, and a lead connection portion connecting the lead outlet end and the free end of the lead.
  • the electrical connection structure may include two pads 6 injection-molded on the housing 1 for conducting with the voice coil lead 4, and the free ends of the two voice coil leads 4 may be welded and fixed to two On each of the pads 6, two pads 6 can be further connected to an external circuit, and two voice coil leads 4 can realize electrical connection with an external circuit through the pad 6.
  • the support member 5 may be provided in a rectangular shape, and the cantilever portion 53 of the support member 5 includes four cantilever arms located on four sides of the rectangle.
  • one end of each cantilever can be connected to the four corners of the inner fixing portion 51 in one-to-one correspondence, and the other end of each cantilever can be connected to the outer fixing portion 52 on the corresponding side, four
  • the cantilevers respectively apply forces to the four corners of the voice coil 3 to prevent the polarization of the vibration system from causing the acoustic performance of the speaker to decrease.
  • the support 5 is a centering piece.
  • the supporting member 5 may be a single-layer structure or a multi-layer composite structure formed of an insulating material, wherein the insulating material is preferably a polymer, and the polymer may be polyimide (PI) or polyether One or more of imide (PEI), polyether ether ketone (PEEK) or polyphenylene sulfide (PPS) and other materials. In other embodiments, other insulating materials may also be used to form the support 5, this The utility model does not limit this.
  • the voice coil lead 4 may be fixed on the support 5 by fixing means such as glue.
  • the two voice coil leads 4 can be completely attached and fixed to the cantilever portions 53 on two opposite sides of the rectangular support 5, and can be routed from the cantilever portion 53 to the electrically connected pad 6 Office.
  • the lead-out end of the voice coil lead 4 can be provided in the connection area of the cantilever portion 53 and the inner fixing portion 51.
  • the supporting member 5 includes two opposite first sides and two opposite second sides.
  • the cantilever portion 53 includes four cantilevers respectively provided on two first sides and two second sides, wherein two voice coil leads 4 may be provided on two first sides or two second sides, respectively On the two opposite cantilevers on the side, the cantilever extends from one end of the corresponding side of the rectangle to the other end of the corresponding side, so that the voice coil lead 4 can be aligned on the cantilever of the support 5.
  • the shape of the support member 5 may be set according to the positions of the lead outlet end and the free end of the voice coil lead 4, or the lead position of the voice coil lead 4 may be set by the shape of the support member 5, so that the voice coil lead 4 The straight path matches the cantilever portion 53 of the support 5. That is, the inner connecting portion where the cantilever is connected to the inner fixing portion 51 is located at the lead out of the voice coil lead 4 from the voice coil 3, and the outer connecting portion where the cantilever is connected to the outer fixing portion 52 is located at the pad 6 to facilitate the voice coil The lead 4 and the pad 6 are soldered.
  • the two voice coil leads 4 can also be arranged on the cantilever on the other side of other rectangles according to the position of the pad 6 welded to the voice coil lead 4 in the housing 1.
  • the arrangement method of the lead 4 is exemplified, but not limited thereto.
  • the two voice coil leads 4 are partially fixed on the cantilever portions 53 on the two opposite sides of the rectangle, and go to the pad 6.
  • the outlet end of the voice coil lead 4 may be formed with an arc-shaped portion 41, as shown in FIG. 4.
  • the arc-shaped portion 41 can reduce the stress of the voice coil lead 4. More preferably, at least part of the arc-shaped portion 41 is suspended, that is, at least part of the arc-shaped portion 41 is located outside the edge of the cantilever portion 53 to increase the radius of the arc-shaped portion 41, further reduce stress concentration, and prevent sound
  • the coil lead 4 was interrupted during the reliability experiment.
  • the lead connection portion connected to the outlet end of the voice coil lead 4 the lead connection portion is preferably completely fit and fixed on the cantilever portion 53 of the support 5.
  • the diaphragm 2 may include a diaphragm center portion in the center of the diaphragm 2 and a diaphragm edge portion 22 connected to an edge of the diaphragm center portion, and together form a diaphragm body portion.
  • the diaphragm center part generally includes a body center part 21 and a reinforcing center part 23 coupled to the surface of the body center part 21.
  • the center of the central portion 21 of the body can be hollowed out.
  • the hollow edge of the central portion 21 of the main body needs to be located inside the edge of the reinforcing central portion 23 fixed to it, so as to ensure that the hollow area is smaller than the area of the reinforcing central portion 23 attached thereto, so as to ensure the airtightness of the diaphragm 2.
  • the magnetic circuit system is formed with a magnetic gap, and the end of the voice coil 3 away from the diaphragm 2 is suspended in the magnetic gap.
  • the magnetic circuit system may include a magnetic guide yoke 73, a central magnet 71 fixed at the center of the magnetic guide yoke 73, and a magnetic guide plate located on the upper surface of the central magnet 71.
  • the magnetic circuit system uses a central magnet 71 and a magnetic guide plate to form a central magnetic circuit at the center of the magnetic yoke 73, and a plurality of magnetic edges at the edge of the magnetic yoke 73
  • the side magnet 72 forms a side magnetic circuit, so that a magnetic gap accommodating the voice coil 3 is formed between the center magnetic circuit and the side magnetic circuit.
  • the magnetic yoke 73 is generally rectangular, and the side magnet 72 may be provided on the four sides of the magnetic yoke 73, or may be provided only on the two long sides or short sides of the magnetic yoke 73, and the magnetic yoke 73 without the side magnet 72
  • the edge may extend vertically with respect to the magnetic yoke 73 to form a side wall, and the side magnetic circuit and the side wall together form a magnetic gap with the central magnetic circuit.
  • the magnetic yoke 73 may further include a flat bottom wall and a side wall extending along the edge of the bottom wall toward the vibration system.
  • a magnetic gap for accommodating the lower end of the voice coil 3 is formed between the side wall of the magnetic yoke 73 and the magnet and the magnetic conductive plate.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)

Abstract

L'invention concerne un haut-parleur, comprenant un boîtier, un ensemble de vibration et un ensemble circuit magnétique relié et fixé au boîtier, l'ensemble de vibration comprenant un diaphragme de vibration, un élément de support et une bobine acoustique fixés l'un à l'autre; l'élément de support comprend une partie de fixation intérieure, une partie de fixation extérieure et une partie en porte-à-faux reliant la partie de fixation intérieure à la partie de fixation extérieure; l'élément de support est une structure formée à partir d'un matériau isolant; la bobine acoustique comprend un fil; et au moins une partie du fil est fixée à la partie en porte-à-faux, de telle sorte que le fil est sorti de la partie en porte-à-faux et est conduit vers un circuit externe par l'intermédiaire d'une structure de connexion électrique. Le présent modèle d'utilité peut éviter les problèmes de polarisation du diaphragme de vibration et une rupture aisée du fil de la bobine acoustique.
PCT/CN2018/122702 2018-09-21 2018-12-21 Haut-parleur WO2020073490A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CN201821551310 2018-09-21
CN201821636980.4 2018-10-10
CN201821636980.4U CN208707958U (zh) 2018-09-21 2018-10-10 一种扬声器

Publications (1)

Publication Number Publication Date
WO2020073490A1 true WO2020073490A1 (fr) 2020-04-16

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ID=65947920

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2018/122702 WO2020073490A1 (fr) 2018-09-21 2018-12-21 Haut-parleur

Country Status (2)

Country Link
CN (1) CN208707958U (fr)
WO (1) WO2020073490A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201995124U (zh) * 2011-02-26 2011-09-28 歌尔声学股份有限公司 微型动圈式电声转换器
CN204465853U (zh) * 2014-12-31 2015-07-08 宇龙计算机通信科技(深圳)有限公司 微型扬声器装置及移动终端
CN206611569U (zh) * 2017-03-15 2017-11-03 歌尔股份有限公司 微型扬声器及包含该微型扬声器的电子装置
CN207070344U (zh) * 2017-07-18 2018-03-02 歌尔科技有限公司 一种扬声器
CN207304910U (zh) * 2017-09-22 2018-05-01 歌尔科技有限公司 一种发声装置中的振动系统以及发声装置
CN207460481U (zh) * 2017-09-29 2018-06-05 山东共达电声股份有限公司 一种改善振动的装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201995124U (zh) * 2011-02-26 2011-09-28 歌尔声学股份有限公司 微型动圈式电声转换器
CN204465853U (zh) * 2014-12-31 2015-07-08 宇龙计算机通信科技(深圳)有限公司 微型扬声器装置及移动终端
CN206611569U (zh) * 2017-03-15 2017-11-03 歌尔股份有限公司 微型扬声器及包含该微型扬声器的电子装置
CN207070344U (zh) * 2017-07-18 2018-03-02 歌尔科技有限公司 一种扬声器
CN207304910U (zh) * 2017-09-22 2018-05-01 歌尔科技有限公司 一种发声装置中的振动系统以及发声装置
CN207460481U (zh) * 2017-09-29 2018-06-05 山东共达电声股份有限公司 一种改善振动的装置

Also Published As

Publication number Publication date
CN208707958U (zh) 2019-04-05

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